[
  "keyword1 data1 data2 data3\n",
  "keyword2 data1 data2 data3\n",
  "    data4 data5\n",
  "    data6\n",
  "keyword1 data1 data2 data3 data4\n",
  "keyword3 data1\n",
]
[
  "keyword1 data1 data2 data3\n",
  "keyword2 data1 data2 data3\n    data4 data5\n    data6\n",
  "keyword1 data1 data2 data3 data4\n",
  "keyword3 data1\n",
]